Persistent perfluoroalkyl free radicals useful as polymerization catalyst
AssigneeThe Green Cross Corporation
InventorsKirby V. Scherer, Jr., Taizo Ono, Kouichi Yamanouchi
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Abstract
Novel persistent perfluorinated free radicals are disclosed, which upon thermal decomposition yield free radicals which can be used to polymerize polymerizable monomers containing ethylenic unsaturation.
Claims15
In a process for free radical-catalyzed polymerization of a monomer containing ethylenic unsaturation in an aqueous, a non-aqueous or a gaseous medium, the improvement which comprises catalyzing said polymerization with a catalytically effective amount of a persistent perfluoroalkyl tertiary free radical having 8 to 12 carbon atoms and at least one secondary or tertiary perfluorinated alkyl group attached directly to the central tri-valent carbon.
Dependencies are inferred from the claim text.